/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb.db.mpp.plan.planner.plan.node.metedata.read;

import org.apache.iotdb.commons.path.PartialPath;
import org.apache.iotdb.commons.path.PathDeserializeUtil;
import org.apache.iotdb.db.mpp.common.header.ColumnHeader;
import org.apache.iotdb.db.mpp.common.header.ColumnHeaderConstant;
import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNode;
import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNodeId;
import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNodeType;
import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;

import java.io.DataOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

public class PathsUsingTemplateScanNode extends SchemaQueryScanNode {

    private List<PartialPath> pathPatternList;

    private int templateId;

    public PathsUsingTemplateScanNode(
            PlanNodeId id, List<PartialPath> pathPatternList, int templateId) {
        super(id);
        this.pathPatternList = pathPatternList;
        this.templateId = templateId;
    }

    public List<PartialPath> getPathPatternList() {
        return pathPatternList;
    }

    public void setPathPatternList(List<PartialPath> pathPatternList) {
        this.pathPatternList = pathPatternList;
    }

    public int getTemplateId() {
        return templateId;
    }

    @Override
    public PlanNode clone() {
        return new PathsUsingTemplateScanNode(getPlanNodeId(), pathPatternList, templateId);
    }

    @Override
    public List<String> getOutputColumnNames() {
        return ColumnHeaderConstant.showPathsUsingTemplateHeaders.stream()
                .map(ColumnHeader::getColumnName)
                .collect(Collectors.toList());
    }

    @Override
    protected void serializeAttributes(ByteBuffer byteBuffer) {
        PlanNodeType.PATHS_USING_TEMPLATE_SCAN.serialize(byteBuffer);
        ReadWriteIOUtils.write(pathPatternList.size(), byteBuffer);
        for (PartialPath pathPattern : pathPatternList) {
            pathPattern.serialize(byteBuffer);
        }
        ReadWriteIOUtils.write(templateId, byteBuffer);
    }

    @Override
    protected void serializeAttributes(DataOutputStream stream) throws IOException {
        PlanNodeType.PATHS_USING_TEMPLATE_SCAN.serialize(stream);
        ReadWriteIOUtils.write(pathPatternList.size(), stream);
        for (PartialPath pathPattern : pathPatternList) {
            pathPattern.serialize(stream);
        }
        ReadWriteIOUtils.write(templateId, stream);
    }

    public static PathsUsingTemplateScanNode deserialize(ByteBuffer buffer) {
        int size = ReadWriteIOUtils.readInt(buffer);
        List<PartialPath> pathPatternList = new ArrayList<>(size);
        for (int i = 0; i < size; i++) {
            pathPatternList.add((PartialPath) PathDeserializeUtil.deserialize(buffer));
        }
        int templateId = ReadWriteIOUtils.readInt(buffer);
        PlanNodeId planNodeId = PlanNodeId.deserialize(buffer);
        return new PathsUsingTemplateScanNode(planNodeId, pathPatternList, templateId);
    }

    @Override
    public String toString() {
        return String.format(
                "PathsUsingTemplateScanNode-%s:[DataRegion: %s]",
                this.getPlanNodeId(), this.getRegionReplicaSet());
    }
}
